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Budget Chinese electric cars

11.11.2021

Chinese electric cars, prices for which have been declining in recent years, have become much cheaper than their European counterparts - in some cases twice as much.

Most Chinese manufacturers are aimed at the mass market, while they adapt previously released cars with internal combustion engines for electric motors. This allows you to effectively expand your audience. Over the past 10 years, the average cost of electric vehicles has almost halved (by 47%). However, if we take the segment of full-size cars, then the average price has dropped by 2011 times since 2,75.

In China, small urban electric vehicles are the leaders in sales, chosen by 40% of buyers. Their average price is 6,7 thousand euros. The most popular model is the Wuling Hongguang Mini EV, Chery recently released a very similar car, which immediately topped the sales chart. In the first 9 months of 2021, Chinese electric vehicle sales grew by 190%. For three quarters, 1,8 million electric vehicles were sold in China, which accounted for 12,4% of the total number of cars sold.

The segment of electric vehicles owes much of its success to the state. The main impetus for progress is Chinese Minister of Science and Technology Wan Gang, who previously worked as an engineer at Audi. Its main goal was the displacement of European cars from the market, as well as the fight against air pollution. Since 2009, China has been developing programs to reduce carbon dioxide in the atmosphere.

In addition, China allocates various subsidies to automobile companies. As a result, the production of electric vehicles has become stable and significantly cheaper.

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Connecting chips at unthinkable angles 24.05.2021

Researchers at HRL Laboratories have developed a 3D microprinting technology that promises to change the approach to multichip packaging. Instead of the usual vertical etching of channels in a substrate for through metallization, scientists propose to print substrates with ready-made holes for metallization. In this case, the routing can be provided at incredible angles and in the most incredible directions, which will make the layout more dense.

The work of HRL Laboratories was carried out under the FOCII program of the US Defense Advanced Research Projects Agency (DARPA). The FOCII (FOcal arrays for Curved Infrared Imagers) program aims to develop simple and extremely wide-angle cameras for reconnaissance, machine vision and other applications. For such cameras, curved image sensors are made, which frees them from complex corrective optics. And curved sensors, as you might guess, will be much more compact if they are connected to the controller not by straight metallization channels, but by curved ones.

HRL Laboratories was able to print an insulating substrate with curved channels for metallization at a resolution of 2 µm. The inner diameter of the channels in this case was 10 μm. This is enough to connect the image sensor to the processor for processing. Printing is carried out by laser stereolithography on polymer or ceramic resin.

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